Apple Pi math earrings - Sold Out

One Apple, one pi. Made in USA from lead-free pewter using solar energy. Hooks of stainless steel. $15.

Apple Pi T-shirt (2XL, 4XL)

What do you get when you divide the circumference of an apple by twice its radius?

Apple Pi.

Cherry Pi Women's Math T-Shirt

Cherry Pi: The first nine digits of Cherry/Lemon/Apple Pi. $20.

Chinese Pi Women's Tank Top

The Chinese symbols for "Circle Circumference Ratio", i.e. Pi. $20.

Easy as Pi T-shirt - SOLD OUT

As seen on TV in the Numb3rs episode "Atomic Number 33".

BEST SELLER. Comes in Adult, Women's, and Youth sizes.

Price: $20.

BEST SELLER. Comes in Adult, Women's, and Youth sizes.

Price: $20.

Flaming Pi Hat - Youth

A flaming Pi symbol embroidered on an 8 inch high hat. Made of 100% wool-feel acrylic. Blue or Pink. $15.

Key Lime Pi T-shirt (4XL only)

Key Lime Pi T-shirt features a key, a chemical formula for lime, and the Pi symbol.

Black 4XL only.

Price: $20.

Lemon Pi Women's Math T-Shirt

Lemon Pi The first nine digits of Lemon Pi.

$20

$20

Long-sleeve Denim Pi Shirt

Long-Sleeved Button-down Denim Pi shirt with embroidered Pi logo above left pocket.

$23.

$23.

Math Power Pin

15/16" (24 mm) diameter.

Price: $5.